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If you're designing a new patio in an area with poor drainage, permeable pavers made from porous materials may help prevent water issues. Most permeable pavers feature a gravel-only aggregate base instead of a concrete base to allow water to flow through instead of getting trapped. While beneficial in some cases, permeable pavers come with higher initial costs and greater load-bearing limitations compared to traditional pavers.

An example of permeable paving is a set of cinder blocks or natural stone pavers with room inside for natural materials, such as gravel, sand, or grass. You can also design these pavers with brick or plastic tiles.

In addition to these pavers, permeable pavement can be obtained by using a highly porous material, such as pervious concrete or pervious asphalt.

Asphalt and tarmac are not the same thing. Traditional tarmac, short for tarmacadam, uses tar as a binder to hold crushed stone together. Asphalt uses bitumen—a byproduct of crude oil—to bind aggregate. Though tarmac was once a go-to for roads, asphalt has become the modern standard. And these days, most surfaces referred to as “tarmac” are actually asphalt. So, while the names may overlap, the key distinction lies in the binder—tar for tarmac and bitumen for asphalt.

Paving is a part of hardscaping, so all paving is hardscaping, but not all hardscaping is paving. Paving involves laying down concrete or asphalt, while hardscaping can also include the use of paving stones, bricks, gravel, wood, and more. Hardscape features that involve paving are considered permanent and will increase your property taxes, while some other hardscaping features—like those involving bricks, gravel, and paving stones—will not affect property taxes. Paving also typically requires a permit, while hardscaping features considered temporary will not.